# Copyright 2023 The jax3d Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Utility for tracking runtime."""

import time


class Stopwatch:
  """Stopwatch for tracking runtime."""

  def __init__(self):
    self._start = time.time()

  def delta(self) -> float:
    """Time passed since this Stopwatch was created, in seconds."""
    return time.time() - self._start
